Fish-stop.



- APPLmATmN mw Juni 29. 1917.

1. W. HALL. A

FISH STOP.

Patented Feb. 5, v1918.

2 SHEETS-sneer l.

J. w, HALL. FISH STUP. PPLCA'TON FILED JUNE 29. 1917.

Patented Feb. 5, 1918.

2 sHEErs-sHEEr 2.

WITNESSE ATTORNEY JAMES W. HALL, 1? PARDEEVXLLIB, WISQONSIN.

FISl-LSTOP.

Lgosil.

Application tiled June 2S, 1917.

To all 'whom t may concer/1i Be it known that I, Jaa-[ns il. HALL, a citizen of the United States, residing at Pardeevillc, in the countyr of Columbia and State 0i Wisconsin, have invented. certain new and useful- Improvenients in Fish Stops, of which the following is a specification.

This invention relates to {ish stops l'or irriga-ting ditches, and has for its primary object to .provide a device lof this character designed to be placed in irrigating ditches and furnished with a screen for preventing the passage along the ditch with the water, of Jiced fish which beconie lost through the shalloiving of the ditches and final distribu tion of the water upon the land.

In connection with the screen devices are power means operated by a water current for raising the screen to cleanse the saine from floating debris and simultaneously lowering a substituted screen, the inoveinent of said I screens being automatically opera-ted by a trip device actuated by pressure aga-inst the primar)T screen.

Another object cit the invention is to provide a ish gate having two screens vertically movable into and out ot an- .irrigating ditch, one of said screens being maintained norinalliT in the ditch to prevent the passage along the same of fish, but which upon the collection of debris through its inability to pass the screen, presses against the screen and disengages a trip that causes the. power means operate-dbgr the current of water in the stream to raise the screen and release and clean 4the debris therefrom, at the same time lowering'the other screens to form a barrier for the passage of fish during the elevation of the primary screen.

A further object oit' the invention is to provide in a fish stop a screen for preventing the passage tlirough an irrigating 'ditchof fish, said screen being movable verticallyto clean the saine Jtrom debris and also h aving limited spring-controlled movement in a longitudt 'naldirec'tion of the ditchwhereby the trip device is operated when pressure of ldebris againstlhe screen issuiiicient. 'and means caused'to engage the power wheel operated by the running current for raising said screen and sin'niltareousl lowering a substitute screen to 'takethe place ot the primary screen while the latter-is in elevated posi'. tion.-

With the above as the principal object-s in view, the invention consists in the novel con- Speccation of Letters Patent.

Patented Feb. 5, 1918.

serial No. 177,776,

struction, coniibination and arrangement of parts hereinafter described, pointed out in the appended claims, and illustrated in the accompanying drawings, in which Figure lis aside eleva-tion of the coni lete [ish stop apparatus before the saine has een pla-ced in an irrigating ditch,

Fig. 2 is a vertical longitudinal section therethrough.

Fig. 3 isn top plan view of the complete fish stop,

Fig. l is a transverse sectional view on the line 4.-4 of Fig. 1, and

Fig. 5 is a similar view on of the same gure.

In the drawings, the apparatus comprises a {iulne formed of a bottom and vertical sides 1l that are designed to fit against the bottoni and sides of an irrigating ditch. At the vdown-stream end of the Hume on each sidell thereof is secured an upright 12 provided with bearings for a horizont-alsha-ft 13 upon which is mounted a water Wheel 14, the blades 150i which dip into the wat-er in the fiume, and through the force of the current the wheel l-ll is rotated. Fixed on one end of the shaft l?, is a disk 16, on the periphery of which are two lifting cams 17 and 18, the use of which will loe explained here ina-iter. At the Lip-stream end of the flume is an up standing box-like member 19, the sides 20 of which each support a longitudinal bea-m21,

the line 5 5 rigidi;T connected at the top by cross bars 22 which serve to brace the beams andthe box 'i9 as do also other cross bars 23 .and 24 on the down and upstream sides of-the box. Midway .of the box 19 on each side, is a vertical guide bar 25, spaced from which, on the upstream side is a similar but smaller bar 26, the spacebetween forming a guideway for a vertically movable screen 27. On .the downstream-side of the guide bars 25 are vertical guide bars 28 providing a passageway for a screen 29, this passagewaybeing slightlyY wider than the screen to permit. 'the latter a .slidable between the -vertical guides, said .heads having spaced and. parallel depending fingers 31 of sufficient length to reach the bottom of the iuine before the head 30 enlOl) limited movement in the longitudinal direc tion of the apparatus.

ters the water. The fingers 31 are placed sufficiently close together to prevent the passage therebetween of fish and thus they are prevented from passing.,r up the irrigating ditch.

In the normal working condition of the apparatus, the screen 29 1s lowered into the flume while the screen 27 remains elevated. The movement of said screens and the manner of retaining them in their normal posi* tions may be described as' follows: In ,the down-stream .ends of the beams 2l is piv otally mounted a transverse shaft -32 to which is secured o-ne or more arms 33 which project toward the screen 29, and ,connected to their free ends are cables or other ilexible connections 34 which" are also attached to the screen 29. the weight of which screens being` sufficient when the shaft 32 is tree to rock, to keep the screen in the flume. A similar sha-ft 35 is carried in the upstream ends of the beams 21 and from thedown-stream ends of arms 36 secured to said shaft are flexible connections 37 also attached to the screen'27. The' opposite ends or the arms 36 extendbe-- )dond the axis et the shaft 35 and are pro` rided with weights 38 suiiicient to overcome the'weight of the screen 27 and when the shaft 85 is free to rotate will hold said screen in elevated position out of the ditch.

Between the vertical guides-25 is a cross bar 39 at such a leight above the' bottom 10 that its underside will be but little below the -under side of the screen heads 30 when' in lowered position. To the under side of this crc-ss bar are fastened a number of pai allel longitudinally extendino lingers 4() that pass beyond said bar in oth the upstream and downstream direction and through the fingers of the screens 27 and 29 and-serve when said screens are raised as cleaners therefor to remove any 4debris that has been brought down by the water oi. the ditch and collected 'against the screen when in lowered position. The debris removed by the fingers will be free to fioat on with the lwater ,in the ditch.

Extending across the flume between the screen 29 and the water wheel 14 is a horizontal lever l41 pivoted at one end 42 tofone of the flume sides 11 and slidable horizontally, in .an-up and down stream direction in agnide 43 mounted on the other flume side.

- Pivoted to this lever intermediate its/ends is a.V longitudinal push bar 44, the free up.-

stream. endet which passes freely through the brace bar QS'and is held in contact with the head 30st the screen 29 by means ot' a spring .45`which*may'reseinble that shown or be otany other suitable forni. The end 4 6 of the -bar 44 that passes thro-ugh the cross bar 2 3 is of reducedsizeto form a shoulder.-

47'that bears upon the cross bar and limits th'e movement of the. bar .44 toward the Sclsse- Under "nrmal, .Conditiols'th spring 45 acting on the bar 44 holds the shoulder 47 thereof against the cross bar 23 so that the projected end 46 of said slide bar bears against the head 30 of the screen 29 and holds the latter against the vertical guides 25 and away from the guide 28. Pressure upon the screen sulicient to overcome the spring will force the push bar 44 toward the water wheel 14 and roclr the horizontal lever 41.

On one end of the shaft 32 is a .depending lever 48, its lower end being pivoted to one end of a horizontal'slide bar 49 that extends in a down-stream direction over the cam disk 16 and between upright guides'O and 51, being supported at this end by a cross bar 52 over which the slide bar 49 moves freely. On 'the under side oit the slide bar 49 are two lugs 53 and 54, the latter being curved or inclined on its down-stream end at as 55.

The shaft 35 has attached on one end an arm 56 similar to the arm 48, and like it, pivotally connected. to one end or" a slide bar 57 that lies substantially parallel tothe slide bar 49 and passes over th'e'disk 16 between upright guides F51 and 502-I and -movable freely over4 the cross bar 52. 0n the under side' of the slide bar 57'is a lug 58 above Athe disk 16 andtwo other lugs -59 and 66 spaced therefrom in an up-stream direction, the lat-A ter being` beveled Vsimilar to the 'lug 54, while the lug 56 has an inclinationvon its opposite end. Pivotally mounted on the side of a box-like member 19 below the slide-bar 57 is a' lever 61 the upper end of which is provided with a. nger 62. adapted to engage at certain times with a notch 63 formed in the under side of the slide bar for the purpose of holding the slide bar in an upfstream direction and the secondary tgate 27 in its lowered position. Below the' disk 16 is a lever 64 pivoted at 65 intermediate its ends to one side 11 of the-flume, the upper end of the lever being adapted to lie' in the vpath-ww of vthe cam 1-8 on said vdisk and of beingv operate-d by it. -A `rod orother connection i 66 extends from the upperien-dof lever'64 to thelower end'oi:I lever'l so that when the y former lever `is operated bythecam18`the.-

lever Gl'wi'llybe drawn out ofena'agementf with the notch 63 inthe slide ba1" 57 and the' latter tion.

l3ivoted to permitted to return toits normalpesithe same side` 1.1- of the flume between the water virheelgand` the fsereen l are two leversr 67 and.'68, the former bei-ng connected above its pivot 69 tothe hori Zonta-l lever 41. The upper end of thisl'ever:

is provided with across head 70 on its upper end that'at predetermined times engages the lug; 60 ifor' the pur-pose of operatingthe alse carriesa cross head 72 onitsnpper tothe site Where it is to be erected, indis-` assembled condition,` and the parts put together-` `In the normal position oi the parts, as shown in the drawing, the screen 29 Will i be in the fiume and extending across the y saine to prevent the `passage of fish and held against the central upriglits 25 by the spring 45, While the supplemental screen 27 Will be held in elevated position by the Weights 38. The levers G7 and 68 will stand in the' positions shown where their respective cross heads I570` and 72 Will support the lugs 60 and 5st on the under side of the respective slide bars 57 and e9, for the purpose oi? elevating the downstream ends of these slide bars and holding the lugs 53 and 5S above i thecanis 17 and 18. As will be understood, the lever 6i `is maintained in its nornial `position by the spring 15 through its action on the bar t4 and cross lever 41, While the lever 68 is positioned to support the slide `bar-i9 by the spring'.

As thus arranged the Water iii the ditch i flows through the iiunie, 'turning Without interruption, the Water Wheel 1d and the disk 1G on itsshaftl. Fish are prevented b-y the screen Q9` from passing the apparatus which `also collects floating debris too large to pass through. the screen. AS this matter` collects, it forms against the up-streani side y of the screen and in time this mass Will gain sufficient size to press with considerable 1 torce against the screen, so muchso in fact as to overcome the resiliency oi' the spring i 41:5` and 'force the screen 29 in a down-stream direction until it is arrested by the vertical guides 28. This `movement of the `screen `forces the push bar all, in contact with 1 the i screen,` longitudinally, which bar pivotally `connected to `the cross lever d1, rocks the latter @which through its connection with the vertical lever swings this lever in the direction indicatedbv the arroiv, Fig. 1, and disengages the head 'oli' `said lever 'from the lug GO, thereby permitting` `the slide bar 57 to dropupon the cross bar 52 `attached to the uprights 59, 51 and `504. Thedoivnivard movement of the slide bar 57 brings the `lug 58 on the under side thereof in position to be engaged by the earn` 17 `on the disk `16 asthelatter rotates which pushes said slide bar in an Lip-stream direction, thereby rocking l the shaft "35;

' the cross bary 52 and bringing the lug thesame so that. the link or rodwivill through the arni v56 fixed thereon vand lowering into the `fiume the normally raised 5 screen 27, said screen being heldin the iiume 59 on the under side thereof will be brought y into contact with the cross head 72 `on the upper end of the substantially vertical lever G8, and, rocking said lever in 'the direction indicated by the arroiv in Fig. 1, the lug` 5d o-n the under side of the slide bar 491 ivill be released, permitting said bar to drop `on i S0 also on said bar in position `to be engaged by the cani 18on disk 16 after cani 1T has completed the move-ment of slide bar 57 and lowered screen 27. The slide bar49 moved in `an up-stream direction by cani 518 will. through the arm 48, rock theshaft 32 and elevate the screen 29, the upward movement. y el which will cause the stationary7 horizontal y lingers 40 that passbettveen` the iingers 31 y of the screen `to clearthe screen `from all f debris and permit it to flow onward ivith the current `of Water. During this elevation,

it will be` understood the supplemental screen 275 is `in itsloiverinost position and serving asy a stopte prevent the passage oi- 'fish through the ditch. As soon as the cam 18 releases the lug 53, the Weight oi"- screen Q9 is suliicient to cause the saine to fall 5to its normal position, carrying the i slide bar 49 by means of arm L8 in a doivii 100 stream diiection,tliiis causing the lug 54 on the underside tliereofto engageand ride.

up on the head 2 of lever 68, the forward endof saidlug being beveled or curved as at 55 as also `is the engaging side ofthe i5 head` 72. Both screens 217I and 29-`are this time in `their lowered positions, but as the Water Wheel lklicontinues` its rotation,` the canilu` will engagethe lever 64: and roclr disconnect the paivl lever 61 from `the notch.

` 63` in the slide bar57` and the latter being iii-ee tof move, the suppleijnental screen i 2T will be raised byitscounteriveights B8 and c at` the saine time `move the slide bar 557 to itsnormal position`,`5the lug 69` onits under 5 side riding`55upon the cross `lit-rad` 79 to litt the lug 5S above the cam `17 `so that the ivater rvvheel may `rotate Without engaging` i i any pa t o't the mechanism,until the latter 15120` has beengagain tripped by the pressure ot collected debris against the screen i 1Nhatlclaiin is; 5 i l. Aeiish stop eoniprisinga screen adapted i o to extend acrossanirrigating ditch and ver-f tically movable, a second vertically movable i screen parallel to the lirstscrcen ,but nor-5 5, inally` maintained `above the ditch, poiver `inechanisni operable bythe flowing current 5 oi Water, a trip means operable by the pres130i5 sure of debris collecting against the iiistmentioned screen, and mechanism controlled by said trip means for causing the power means to` temporarily change the positions of said-screens. o

2. A fish stop comprising` a primary and a secondary vertically movable screen, the former screen normally maintained within an irrigating ditch and the latter above the same, powerymeans operated by the current of water flowing through the ditch, a trip device operable by the primary screen under pressure of a collected mass of: floating debris, and means operated by said trip device for causing the power means to lower the secondary screen into the ditch and raise the primary screen to clean the same from the debris.'

3. A lisli stop comprising a primaryand asecondary vertically `movable screen, said primary screennormally maintained Within an ii' 1igating ditch and the latter above the saine, power means operable by `the current o f water flowing through the irrigat'ingl i ditch, a trip device operable by the primary screen under pressure of a collected mass of floatingdebris, means connected' to the secondary screen controlled by the trip device and operable by the power means for lowering the secondary screen into the ditch, similar means for raising the primary screen to clean` it `from they floating debris and operable after lowering of the secondary screen, and means also operable by the power means for causing the restoration of the screens to their normal position.

4. A lishstop comprising a flume, a pairy ofparallel vertically movable screens at one end of said i'iume, one of said screens being normally maintained within the flume` and the otherabove the same, a wat-er wheel at' the other end ofthe flume operable by the:

current flowing therethrongli,y a cam disk on the shaft of said water wheel, a trip device operable by the pressure of floating debris against the screeny normally maintained Within the Hume, slide bars connected to said screens for reversing their. normal"positions,` and means operablev by the 5 trip` device `for causing said slide bars-to beengaged by the cani disky for temporarily changing tliepositions` of said screens.

f 5. A -lsh stop comprising a flume adapted y to be placed in an irrigatingd'itch, a vertically movable primary screen normally maintained within said' `flume at one end, av secondary vertically movable screen adja- Lcent the primary screen and parallel thereto, said screen-'being normally .maintained above the `flumaa Water wheelmounted at the other end'of the flume and operated by the currenty passing therethrough, a cam disk on the shaft of said1 Water Wheel, a pair rof slide bars each connected toi means for raising and lowering said-"screens, a trip deviceoperable by the pressure against the primary screen of floating debris, means on said slide bars for causing their operation yby said cam disks, means for normally maintaining said slide bars out of engagement with the cani disks and adapted to be 0perated` byr said trip device to release said slide bars and permit theirv operation by the cam disk for temporarily changing the normal position of said screens for the purpose of clearing the primary screen yof debris,`

and means also operable by said cani dislrv by the current flowing therethrough, a cam disk on one end of said Water wheel, a

pair of rock shafts and arms thereon connected. to sa'id'screens by means of which the latter may be raised and lowered, a slide bar operably connectedv to each of said i'oclr` shafts and adapted to be moved endwise for temporarily changing the position of said screens by the rotary movement of said cam disk, means. for maintaining said slide bars out of operation with said cani dislr, and a trip devicel operable by the primary screen through the pressure thereon of floating debris and connected to said last-named means for permitting the slide bars to be engaged by the cam disk for changing the position of said screens, locking meansy for holding, said screens in their changed position, `and means operable by the cam disk for disengaging said locking means and permitting the screens to be restored to normal position by gravity.

7. A sh stop comprising a fiume adapted to be placed within an irrigating ditch,l verti cal-ly movable screens mounted at one end of said flume, one of said screens being normally maintained within the vfiume and the other above the saine, the first-mentioned screen having limited movement longitudinally of the flume, a Water wheel mounted at the opposite end of thel iiume and rotated by the lcurrent passing therethrough, a cam disk operable by said water wheel, means conico" nected to each of said screens and adapted i to be operated by saidcam dish for reversing the positions of said screens to permit I the cleansing of debris therefrom, a trip device operable by"y the pressure of collected debris for throwing said means into operation, said device comprising a vertical lever adapted to hold the screen operatingk means i out `of contact ywith the camk disk, a horiiso :alf

zontal lever connected tothe vertical lever for swinging the same, and a spring actu ated bar connected to said horizontal lever and bearing upon the screen to hold the `same at its limit of movement against the flow of the current, said bar being movable in the opposite direction under pressure oi debris collected against the screen for chang-` ing the position of the screens.

S. A fish stop comprising a flume adapted p to`be placed Within an irrigating ditch, a

Copies of this patent may be obtained for vertically movable primary screen extending across one end of said flume and having limited movement longitudinally of the flume, a secondary vertically movable screen parallel to t-he primary screen but maintained normally above the fiume, a Water Wheel mounted at the opposite end of the `flume and rotatable by the current `flowing cam disk and having means on their under sides to be engaged by the cam disk and moved longitudinally to change the respecvtive positions of said screen, a vertical lever pivoted on the sideof the flume for maintaining each of said slide bars out of `engagement with said cam disk, `means for locking the slide bar connected t'o the secondary screen ior holdingthe saine in its loweredposition, a trip device operable by the primary screen under pressure of debris collected against its upstream side for re leasing said slide bars to permit engagement by the cam disk whereby thepositions of the screens are temporarily cliangedto clear the i same from collected debris, and means also operated by said cam disk for releasing the slide bar locking device to permit the return oi the .screens to normal position.

In testimony whereof I affix my signature in presence of tivo `Witnesses.

. JAMES W. HALL. itnesses: t

A. L. lVooD, y i GEdH. .Eeemisfroim y y ve cents each, by addressing the` "Commissioner o! Patents, .i

Washington, D. C." i 

